---
description: 'Disallows calling expressions in templates, except for output handlers.'
options: null
optionsDescription: Not configurable.
rationale: Calling expressions in templates causes it to run on every change detection cycle and may cause performance issues.
ruleName: template-no-call-expression
type: maintainability
typescriptOnly: true
layout: rule
title: 'Rule: template-no-call-expression'
optionsJSON: 'null'
---